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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Applying the generalized additive main effects and multiplicative interaction model to analysis of maize genotypes resistant to grey leaf spot.
Autores:  ACORSI, C. R. L.
GUEDES, T. A.
COAN, M. M. D.
PINTO, R. J. B.
SCAPIM, C. A.
PACHECO, C. A. P.
GUIMARAES, P. E. de O.
CASELA, C. R.
Data:  2017-02-01
Ano:  2016
Palavras-chave:  Milho
Mancha foliar
Maize
Resumo:  Analysing the stability and adaptation of cultivars to different environments is always necessary before recommending them for planting on large areas. Additive main effects and multiplicative interaction (AMMI) models have been used to analyse genotype-by-environment interactions (G × E). AMMI models require data with homogeneous variance, normal errors and additive effects. However, agronomic data do not always conform to these statistical assumptions. The objective of the present study was to analyse G × E interactions for severity and incidence of grey leaf spot, a foliar disease in maize caused by Cercospora zeae-maydis, using a generalized AMMI model. Data were collected and evaluated for 36 maize cultivars from experiments carried out in nine Brazilian regions in 2010/11 by the Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA?Milho e Sorgo). Only two of three stable genotypes defined by a quasi-likelihood model with a logistic link function could be recommended for their desirable agronomic characteristics. Four growing locations in which the genotypes were stable were identified, but in only one of these was stability associated with very severe grey leaf spot disease. Cultivars adapted to specific locations with low percentage disease severity were also identified.

2016
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Português
Identificador:  14695146

24784

http://www.alice.cnptia.embrapa.br/handle/doc/1062370

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/154434/1/Applying-the-generalized.pdf

10.1017/S0021859616001015
Editor:  Journal of Agricultural Science, Cambridge, 2016.
Relação:  Embrapa Tabuleiros Costeiros - Artigo em periódico indexado (ALICE)
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